# N477WN: 2004 Boeing 737-7H4

- Status: Valid registration
- Airframe: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (registry code 1384404, 143 seats)
- Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 33988
- Year built: 2004
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: August 10, 2004
- Certificate issued: September 9, 2004
- Expires: May 31, 2028
- Mode S code: A5DD1C
- Registered owner: [Southwest Airlines Co](https://openairdocs.org/faa-owner/SOUTHWEST%20AIRLINES%20CO)
- Location: [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas)
- Owner type: Corporation
- Owner's area on the map: 32.8326° N, 96.8491° W: Placed by OpenAirDocs at the center of ZIP code 75235, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=477WN
- Page: https://openairdocs.org/aircraft/N477WN

From the FAA registry file of October 22, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every CFM International CFM56 model are included.

## ADs that may apply (OpenAirDocs): 55 in force

### Matched by airframe (Boeing 737-7H4)

None in force.

### Matched by engine (CFM International CFM56 series)

- [AD 2023-05-05](https://openairdocs.org/ad/2023-05-05): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 98 more. Effective May 10, 2023
- [AD 2022-02-03](https://openairdocs.org/ad/2022-02-03): Turbine Engine Accessory Drive · CFM International CFM56-3, CFM56-3B, CFM56-3C and 34 more. Effective Mar 22, 2022
- [AD 2021-16-08](https://openairdocs.org/ad/2021-16-08): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 55 more. Effective Sep 28, 2021
- [AD 2018-26-01](https://openairdocs.org/ad/2018-26-01): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jan 10, 2019
- [AD 2018-09-51](https://openairdocs.org/ad/2018-09-51): Engine · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 7, 2018
- [AD 2017-14-08](https://openairdocs.org/ad/2017-14-08): Turbine Engine Compressor Section · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Aug 18, 2017
- [AD 2017-05-09](https://openairdocs.org/ad/2017-05-09): Accessory Gearboxes · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 33 more. Effective Apr 13, 2017
- [AD 2016-14-10](https://openairdocs.org/ad/2016-14-10): High-pressure turbine (HPT) disks · CFM International CFM56-3, CFM56-3B and CFM56-3C with STC SE00034EN. Effective Aug 9, 2016
- [AD 2016-02-04](https://openairdocs.org/ad/2016-02-04): Turbine rear frames (TRFs) · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 33 more. Effective Mar 1, 2016
- [AD 2015-18-04](https://openairdocs.org/ad/2015-18-04): 73-tooth gearshaft located in the engine accessory gearbox (AGB) · CFM International CFM56-3, CFM56-7B20, CFM56-7B20/2 and 47 more. Effective Oct 20, 2015
- [AD 2015-04-02](https://openairdocs.org/ad/2015-04-02): Dual engine thrust instability event · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Mar 31, 2015
- [AD 2013-14-06](https://openairdocs.org/ad/2013-14-06): Hydro-mechanical unit (HMU) fuel control · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more. Effective Sep 3, 2013
- [AD 2012-02-03](https://openairdocs.org/ad/2012-02-03): Engine · CFM International CFM56-5B1/3, CFM56-5B2/3, CFM56-5B3/3 and 8 more. Effective Mar 15, 2012
- [AD 2010-13-09](https://openairdocs.org/ad/2010-13-09): Stage 3 low-pressure turbine (LPT) · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 88 more. Effective Jul 26, 2010
- [AD 2010-12-03](https://openairdocs.org/ad/2010-12-03): Fan blades · CFM International CFM56-3 and CFM56-3B. Effective Jul 13, 2010
- [AD 2010-09-14](https://openairdocs.org/ad/2010-09-14): Exhaust gas temperature (EGT) · CFM International CFM56-5B1/2P, CFM56-5B1/P, CFM56-5B2/2P and 16 more. Effective Jun 8, 2010
- [AD 2010-01-05](https://openairdocs.org/ad/2010-01-05): LP turbine rear frames · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 25 more. Effective Feb 18, 2010
- [AD 2009-18-01](https://openairdocs.org/ad/2009-18-01): LP turbine rear frames · CFM International CFM56-5B1/3, CFM56-5B1/P, CFM56-5B2/3 and 19 more. Effective Oct 1, 2009
- [AD 2009-11-02](https://openairdocs.org/ad/2009-11-02): HPC 4-9 spools · CFM International CFM56-2, CFM56-2A, CFM56-2B and 109 more. Effective Jun 23, 2009
- [AD 2008-03-09](https://openairdocs.org/ad/2008-03-09): Low pressure turbine rear frames (TRFs) · CFM International CFM56-7B18, CFM56-7B20, CFM56-7B22 and 10 more. Effective Mar 10, 2008
- [AD 2007-24-04](https://openairdocs.org/ad/2007-24-04): Low pressure turbine (LPT) · CFM International CFM56-5C4/1. Effective Dec 6, 2007
- [AD 2007-03-15](https://openairdocs.org/ad/2007-03-15): Exhaust gas temperature (EGT) harness · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more. Effective Mar 19, 2007
- [AD 2006-26-01](https://openairdocs.org/ad/2006-26-01): Fuel filters · CFM International CFM56-2, CFM56-2A, CFM56-2B and 93 more. Effective Jan 3, 2007
- [AD 2005-10-05](https://openairdocs.org/ad/2005-10-05): Air turbine starters · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 50 more. Effective Jun 14, 2005
- [AD 97-09-02 R3](https://openairdocs.org/ad/97-09-02-R3): High pressure turbine rotor (HPTR) front shafts · CFM International CFM56-5C2, CFM56-5C3/G and CFM56-5C4. Effective Oct 14, 2004
- [AD 2004-10-13](https://openairdocs.org/ad/2004-10-13): Service main fuel pumps · CFM International CFM56-3, CFM56-5, CFM56-5-A1/F and 4 more. Effective Jun 24, 2004
- [AD 2002-22-12](https://openairdocs.org/ad/2002-22-12): Titeflex hoses · BAE Systems ATP, Avro 146-RJ100A, Avro 146-RJ70A and 122 more. Effective Dec 13, 2002
- [AD 2002-16-18](https://openairdocs.org/ad/2002-16-18): Low pressure turbine (LPT) nozzle segments · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 33 more. Effective Sep 18, 2002
- [AD 2002-13-03](https://openairdocs.org/ad/2002-13-03): Turbofan Engines · CFM International CFM56-2, CFM56-2A, CFM56-2B and 55 more. Effective Aug 1, 2002
- [AD 2002-02-13](https://openairdocs.org/ad/2002-02-13): Magnetic Drain Plug · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 33 more. Effective Mar 21, 2002
- [AD 2001-11-05](https://openairdocs.org/ad/2001-11-05): No. 4 Bearings · CFM International CFM56-2, CFM56-2B, CFM56-3 and 45 more. Effective Jun 11, 2001
- [AD 2001-09-17](https://openairdocs.org/ad/2001-09-17): Fuel Manifold and CJ9L Harness · CFM International CFM56-5C2, CFM56-5C2/4, CFM56-5C2/F and 13 more. Effective May 14, 2001
- [AD 2001-04-06](https://openairdocs.org/ad/2001-04-06): Fan Disk · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Apr 4, 2001
- [AD 2001-02-12](https://openairdocs.org/ad/2001-02-12): On-Wing Torque Inspection · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 11 more. Effective Feb 14, 2001
- [AD 2000-15-01](https://openairdocs.org/ad/2000-15-01): Fuel Leakage · CFM International CFM56-2, CFM56-2A, CFM56-2B and 39 more. Effective Oct 2, 2000
- [AD 2000-05-22](https://openairdocs.org/ad/2000-05-22): CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective May 2, 2000
- [AD 99-06-16](https://openairdocs.org/ad/99-06-16): High Pressure Turbine Rotor (HPTR) Front Air Seal · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 3 more. Effective Apr 21, 1999
- [AD 98-21-23](https://openairdocs.org/ad/98-21-23): Electronic Engine Control · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Nov 2, 1998
- [AD 98-19-20](https://openairdocs.org/ad/98-19-20): Hydromechanical Unit · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 7 more. Effective Oct 7, 1998
- [AD 98-14-51](https://openairdocs.org/ad/98-14-51): Accessory Gearbox · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Oct 1, 1998
- [AD 98-19-10](https://openairdocs.org/ad/98-19-10): Accessory Gearbox · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Sep 28, 1998
- [AD 98-12-32](https://openairdocs.org/ad/98-12-32): High Pressure Turbine Rotor Disks · CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective Jul 20, 1998
- [AD 98-10-11](https://openairdocs.org/ad/98-10-11): Accessory Gearbox · CFM International CFM56-3, CFM56-3B, CFM56-3C and 31 more. Effective Jun 3, 1998
- [AD 98-07-02](https://openairdocs.org/ad/98-07-02): Air/oil Seal · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Mar 30, 1998
- [AD 98-02-04](https://openairdocs.org/ad/98-02-04): Low Pressure Turbine Case · CFM International CFM56-5B1/2P, CFM56-5B2/2P, CFM56-5B3/2P and 1 more. Effective Mar 23, 1998
- [AD 89-23-06 R1](https://openairdocs.org/ad/89-23-06-R1): Magnetic Chip Detector · CFM International CFM56-2, CFM56-2A, CFM56-3 and 8 more. Effective Jan 28, 1998
- [AD 97-08-01](https://openairdocs.org/ad/97-08-01): Fan Disks · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Jun 23, 1997
- [AD 97-06-01](https://openairdocs.org/ad/97-06-01): High Pressure Compressor Rotor (HPCR) Stage 1-2 Spool · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 28 more. Effective Jun 3, 1997
- [AD 97-05-13](https://openairdocs.org/ad/97-05-13): Air Turbine Engine Starter · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 3 more. Effective Jun 3, 1997
- [AD 96-25-11](https://openairdocs.org/ad/96-25-11): Redesigned Fan Blades · CFM International CFM56-3B and CFM56-3C. Effective Jan 29, 1997

### Historical (superseded or no longer in force)

- [AD 2021-10-09](https://openairdocs.org/ad/2021-10-09) (historical): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 82 more. Effective Jun 24, 2021
- [AD 2019-12-05](https://openairdocs.org/ad/2019-12-05) (historical): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 39 more. Effective Jul 5, 2019
- [AD 2018-18-01](https://openairdocs.org/ad/2018-18-01) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Oct 16, 2018
- [AD 2018-10-11](https://openairdocs.org/ad/2018-10-11) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 1, 2018
- [AD 2018-09-10](https://openairdocs.org/ad/2018-09-10) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective May 14, 2018
- [AD 2013-26-01](https://openairdocs.org/ad/2013-26-01) (historical): Oil dynamic seal assembly · CFM International CFM56-3, CFM56-3B, CFM56-3C and 52 more. Effective Feb 3, 2014
- [AD 2013-02-02](https://openairdocs.org/ad/2013-02-02) (historical): High-pressure turbine (HPT) disks · CFM International CFM56-3, CFM56-3B and CFM56-3C with STC SE00034EN. Effective Jan 28, 2013
- [AD 2009-01-01](https://openairdocs.org/ad/2009-01-01) (historical): Exhaust gas temperature (EGT) · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 22 more. Effective Dec 31, 2008
- [AD 97-09-02 R2](https://openairdocs.org/ad/97-09-02-R2) (historical): Low pressure turbine rotor (LPTR) · CFM International CFM56-5C2, CFM56-5C2/4, CFM56-5C2/F and 9 more. Effective Apr 29, 2003
- [AD 2003-02-04](https://openairdocs.org/ad/2003-02-04) (historical): Exhaust gas temperature (EGT) · CFM International CFM56-5 Series (all). Effective Feb 27, 2003
- [AD 97-09-02 R1](https://openairdocs.org/ad/97-09-02-R1) (historical): High Pressure Turbine rotor (HPTR) front shaft · CFM International CFM56-5C2/G, CFM56-5C2/G4, CFM56-5C3/G and 3 more. Effective Sep 24, 2002
- [AD 2001-17-14](https://openairdocs.org/ad/2001-17-14) (historical): LPT Conical Supports · CFM International CFM56-5C4/1. Effective Sep 7, 2001
- [AD 2001-08-51](https://openairdocs.org/ad/2001-08-51) (historical): Fuel leakage · CFM International CFM56-5 Series (all)
- [AD 2000-12-01](https://openairdocs.org/ad/2000-12-01) (historical): Critical Life-Limited Parts · CFM International CFM56-2, CFM56-2A, CFM56-2B and 54 more. Effective Dec 11, 2000
- [AD 99-08-16](https://openairdocs.org/ad/99-08-16) (historical): CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective May 13, 1999
- [AD 97-09-02](https://openairdocs.org/ad/97-09-02) (historical): High/Low Pressure Turbine Rotor · CFM International CFM56-5C2/G, CFM56-5C2/G4, CFM56-5C3/G and 3 more. Effective Jun 30, 1997

All 71: https://openairdocs.org/aircraft/N477WN/ads.md

## Information bulletins (advisory) (4 in force)

- [SAIB NE-08-17R3](https://openairdocs.org/saib/NE-08-17R3): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued May 28, 2014
- [SAIB NE-13-33R2](https://openairdocs.org/saib/NE-13-33R2): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued Jan 28, 2014
- [SAIB NE-12-29](https://openairdocs.org/saib/NE-12-29): Engine Fuel Distribution  CFM56-5B LPTACC Fuel Manifold. Issued Apr 27, 2012
- [SAIB NE-06-02](https://openairdocs.org/saib/NE-06-02): . Issued Oct 18, 2005
- [SAIB NE-13-33R1](https://openairdocs.org/saib/NE-13-33R1) (historical): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued Jun 24, 2013
- [SAIB NE-13-33](https://openairdocs.org/saib/NE-13-33) (historical): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued May 13, 2013
- [SAIB NE-08-17R2](https://openairdocs.org/saib/NE-08-17R2) (historical): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued Mar 7, 2011
- [SAIB NE-08-17R1](https://openairdocs.org/saib/NE-08-17R1) (historical): Propulsion Technology LLC Unapproved Repair. Issued May 22, 2008
- [SAIB NE-08-17](https://openairdocs.org/saib/NE-08-17) (historical): Propulsion Technologies International Unapproved Repair. Issued May 14, 2008

## NTSB investigations

None matched to N477WN.

## FAA accident and incident reports

None matched to N477WN.

## Service difficulty reports (314, newest 50)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR SWAA2026091610565](https://openairdocs.org/sdr/SWAA2026091610565), Sep 12, 2026: SWITCH. INOPERATIVE. CAPTAIN MASTER FIRE WARNING LIGHT DOES NOT SILENCE BELL. OK TO CONT. PER MEL 26-10-02 SP1 AUTH# 339621. REMOVED AND REPLACED CAPT FIRE WARNING LIGHT SWITCH IAW 
- [SDR SWAA2026081009820](https://openairdocs.org/sdr/SWAA2026081009820), Aug 6, 2026: LAMP. INOPERATIVE. OVERWING EXIT DOOR LIGHT RT SIDE, INOPERATIVE. OK TO CONTINUE IAW MEL 33-2-03. SP1B, MDDR 333138. REPLACED THE LAMPS IN THE RT OVERWING EXIT DOOR WINDOW LIGHT I
- [SDR SWAA2026072837576](https://openairdocs.org/sdr/SWAA2026072837576), Jul 24, 2026: COVER. MISSING. PASSENGER CABIN AFT SERVICE DOOR SLIDE COVER END CAP MISSING. INSTALLED PASSENGER CABIN AFT SERVICE DOOR SLIDE COVER END CAP IAW AMM 25-66-01.
- [SDR SWAA2026072842871](https://openairdocs.org/sdr/SWAA2026072842871), Jul 24, 2026: DOOR. CRACKED. LEFT MLG CENTER DOOR CRACKED. REMOVED LT CTR & INNER MLG GEAR DOOR IAW AMM 32-13-11, OK FOR CONTINUED SERVICE IAW CDL 32-10-3XC. REINSTALLED L/H MLG CENTER DOOR
- [SDR SWAA2026060105688](https://openairdocs.org/sdr/SWAA2026060105688), May 12, 2026: STRAP. NOT REPORTED. STA 328 FRAME STRAP FROM STR 22R TO STR 20R DOES NOT MATCH WITH CONFIGURATION TASK 5311-I-17336-NG FIGURE 15. AS PER EA 26-153-01284; THE CONFIGURATION IS ACCEP
- [SDR SWAA2026060197337](https://openairdocs.org/sdr/SWAA2026060197337), May 10, 2026: ANGLE. CRACKED. CRACK ANGLE TRAILING EDGE ORSS 261 PLUS 18 INCH AT RT WING. REPLACED ANGLE TRAILING EDGE ORSS 261 PLUS 18 INCH AT RT WING IAW SRM 51-10-02-0G-0, ITEM 9, SRM 51-
- [SDR SWAA2026060197338](https://openairdocs.org/sdr/SWAA2026060197338), May 10, 2026: ANGLE. CRACKED. CRACK ANGLE TRAILING EDGE ORSS 261 PLUS 10 INCH RT WING. REPLACED ANGLE TRAILING EDGE ORSS 261 PLUS 10 INCH RT WING IAW SRM 51-10-02-0G-0, ITEM 9, SRM 51-40-02-
- [SDR SWAA2026060197188](https://openairdocs.org/sdr/SWAA2026060197188), May 10, 2026: PLATE. CRACKED. CRACK CORRUGATED PLATE TRAILING EDGE IRSS 199 PLUS 16 INCH AT LT WING. REPLACED CORRUGATED PLATE TRAILING EDGE IRSS 199 PLUS 16 INCH AT LT WING IAW SRM 51-40-02
- [SDR SWAA2026060197190](https://openairdocs.org/sdr/SWAA2026060197190), May 10, 2026: ANGLE. CRACKED. CRACK ANGLE TRAILING EDGE ORSS 261 PLU 18 INCH LT WING. REPLACED ANGLE AND FASTENERS TRAILING EDGE ORSS 261 PLU 18 INCH LT WING IAW SRM 51-40-02; SRM 51-10-02 I
- [SDR SWAA2026060197191](https://openairdocs.org/sdr/SWAA2026060197191), May 10, 2026: ANGLE. CRACKED. CRACK ANGLE TRAILING EDGE ORSS 261 PLUS 10 INCH LT WING. REPLACED ANGLE TRAILING EDGE ORSS 261 PLUS 10 INCH LT WING IAW SRM 51-40-02 AND DWG 115A2930 SHEET 7 RE
- [SDR SWAA2026060197189](https://openairdocs.org/sdr/SWAA2026060197189), May 10, 2026: SUPPORT BRACKET. CRACKED. CRACK SUPPORT BRACKET TRAILING EDGE ORSS 261 PLUS 10 INCH AT LT WING. REPLACED SUPPORT BRACKET AND FASTENERS ON TRAILING EDGE ORSS 261 PLUS 10 INCH AT LT WING I
- [SDR SWAA2026060103789](https://openairdocs.org/sdr/SWAA2026060103789), May 10, 2026: FITTING. CRACKED. REMOVE AND REPLACE SLAT NR 8 DUE TO CRACKED ACTUATOR FITTING. REPLACED LEADING EDGE SLAT 8 AT RT WING IAW AMM 27-81-21-401. TESTED OK.
- [SDR SWAA2026060197339](https://openairdocs.org/sdr/SWAA2026060197339), May 10, 2026: PLATE. CRACKED. CRACK CORRUGATED PLATE TRAILING EDGE IRSS 199 PLUS 30 INCH RT WING. REPLACED ACCESS PANEL 651CT AND FASTENERS LOCATED ON TRAILING EDGE RT WING IAW SRM 51-40-02 
- [SDR SWAA2026060197036](https://openairdocs.org/sdr/SWAA2026060197036), May 9, 2026: SEAT TRACK. CORRODED. CORROSION SEAT TRACK LOCATED BS 360 PLUS 14 INCH AND LBL 45.5 WL 208.1 PASSENGER CABIN. REPLACED SEAT TRACK LOCATED BS 360 TO BS 480 AND LBL 45.5 WL 208.1 PASSE
- [SDR SWAA2026060197185](https://openairdocs.org/sdr/SWAA2026060197185), May 9, 2026: ACCESS PANEL. CRACKED. CRACK ANGLE ACCESS PANEL 551GB AT LT WING. REPLACED ANGLE AND FASTENERS LOCATED ACCESS PANEL 551GB AT LT WING IAW SRM B737-700 51-10-02, ITEM 9 AND SRM B737-700
- [SDR SWAA2026060196744](https://openairdocs.org/sdr/SWAA2026060196744), May 8, 2026: ACCESS PANEL. CRACKED. CRACK BLADE ACCESS PANEL 333AT AT LT HORIZONTAL STAB. REPLACED BLADE ON ACCESS PANEL 333AT AT LT HORIZONTAL STAB. IAW SRM 51-40-02 AND DWG 186A3101 SHEET 13 REV
- [SDR SWAA2026060196745](https://openairdocs.org/sdr/SWAA2026060196745), May 8, 2026: ACCESS PANEL. CRACKED. CRACK LEADING EDGE RIB ACCESS PANEL 331B LOCATED LE STA 95.96 AT LT HORIZONTAL STABILIZER. REPLACED LEADING EDGE RIB ACCESS PANEL 331B LOCATED LE STA 95.96 AT L
- [SDR SWAA2026060196746](https://openairdocs.org/sdr/SWAA2026060196746), May 8, 2026: ACCESS PANEL. CRACKED. CRACK LEADING EDGE RIB ACCESS PANEL 331B LOCATED LE STA 78.29 AT LT HORIZONTAL STABILIZER. REPLACED LEADING EDGE RIB ACCESS PANEL 331B LOCATED LE STA 78.29 AT L
- [SDR SWAA2026060196747](https://openairdocs.org/sdr/SWAA2026060196747), May 8, 2026: ACCESS PANEL. DAMAGED. ELONGATED HOLES ON ACCESS PANEL 561AB TRAILING EDGE AT LT WING. REPAIRED ACCESS PANEL 561AB TRAILING EDGE AT LT WING IAW SRM 51-70-04-2R-9 REPAIR 9.
- [SDR SWAA2026060196748](https://openairdocs.org/sdr/SWAA2026060196748), May 8, 2026: ACCESS PANEL. DAMAGED. ELONGATED HOLES ON ACCESS PANEL 661AB TRAILING EDGE AT RT WING. REPAIRED ACCESS PANEL 661AB TRAILING EDGE AT RT WING IAW SRM 51-70-04-2R-9 REPAIR 9.
- [SDR SWAA2026060196749](https://openairdocs.org/sdr/SWAA2026060196749), May 8, 2026: ACCESS PANEL. DAMAGED. ELONGATED HOLES ON ACCESS PANEL 661CB TRAILING EDGE AT RT WING. REPAIRED ACCESS PANEL 661CB TRAILING EDGE AT RT WING IAW B737-700 SRM 51-70-04-2R-9 REPAIR 9.
- [SDR SWAA2026060196750](https://openairdocs.org/sdr/SWAA2026060196750), May 8, 2026: ACCESS PANEL. DAMAGED. ELONGATED HOLES ON ACCESS PANEL 661BB TRAILING EDGE AT RT WING. REPAIRED ACCESS PANEL 661BB TRAILING EDGE AT RT WING IAW SRM 51-70-04-2R-9 REPAIR 9.
- [SDR SWAA2026060196751](https://openairdocs.org/sdr/SWAA2026060196751), May 8, 2026: ACCESS PANEL. DAMAGED. ELONGATED HOLES ON ACCESS PANEL 561BB AT LT WING. REPAIRED ACCESS PANEL 561BB AT LT WING IAW SRM 51-70-04-2R-9 REPAIR 9.
- [SDR SWAA2026060196752](https://openairdocs.org/sdr/SWAA2026060196752), May 8, 2026: ACCESS PANEL. DAMAGED. ELONGATED HOLES ON ACCESS PANEL 561CB TRAILING EDGE AT LT WING. REPAIRED ACCESS PANEL 561CB TRAILING EDGE AT LT WING IAW SRM 51-70-04-2R-9 REPAIR 9.
- [SDR SWAA2026060196199](https://openairdocs.org/sdr/SWAA2026060196199), May 7, 2026: PRESSURE DECK. CRACKED. CRACK INDICATION ON HORIZONTAL PRESSURE DECK WEB RBL 40 STA 663 AT PASSENGER CABIN. PERFORMED PERMANENT REPAIR ON HORIZONTAL PRESSURE DECK LOCATED BETWEEN BS 66
- [SDR SWAA2026060196200](https://openairdocs.org/sdr/SWAA2026060196200), May 7, 2026: PRESSURE DECK. CRACKED. CRACK INDICATION ON HORIZONTAL PRESSURE DECK WEB LBL 31 STA 663 AT PASSENGER CABIN. PERFORMED PERMANENT REPAIR HORIZONTAL PRESSURE DECK WEB BETWEEN BS 663.75 AN
- [SDR SWAA2026060196343](https://openairdocs.org/sdr/SWAA2026060196343), May 7, 2026: RIB. CRACKED. CRACK INSPAR RIB LOCATED STAB STA 120.30 AND 28 INCH FROM FRONT SPAR AT LT HORIZONTAL STABILIZER. PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 120.
- [SDR SWAA2026060196567](https://openairdocs.org/sdr/SWAA2026060196567), May 7, 2026: ACCESS PANEL. DAMAGED. ELONGATED HOLE ACCESS PANEL 123YAC AT FWD CARGO COMPARTMENT. FABRICATED ACCESS PANEL 123YAC AT FWD CARGO COMPARTMENT IAW AMM 25-52-01-201-801 STEP 1 F AND DWG 4
- [SDR SWAA2026060196198](https://openairdocs.org/sdr/SWAA2026060196198), May 6, 2026: LIGHT. DETERIORATED. DETERIORATED PHOTOLUMINESCENT STRIP ALONG PASSENGER CABIN. TASK CARD COMPLETED REPLACED PHOTOLUMINESCENT STRIP ALONG PASSENGER CABIN IAW BOEING AMM 33-51-15-400
- [SDR SWAA2026060195830](https://openairdocs.org/sdr/SWAA2026060195830), May 5, 2026: FITTING. CRACKED. CRACK LOWER SURFACE OF LEADING EDGE SLAT 8 NOSE SKIN AT ACTUATOR LOC. AROUND FASTENER AT RT WING. SLAT 8 HAS BEEN REPLACED BECAUSE THE ACTUATOR FITTING WAS FOUN
- [SDR SWAA2025102427910](https://openairdocs.org/sdr/SWAA2025102427910), Oct 23, 2025: GIRT BAR. OUT OF ADJUST. FWD SERVICE DOOR GIRT BAR HANGERS LOOSE. RETENSIONED FWD SERVICE DOOR GIRT BAR HANGERS PER SIP?S. OPS CHECKS GOOD.
- [SDR SWAA2025041023460](https://openairdocs.org/sdr/SWAA2025041023460), Apr 10, 2025: GIRT BAR. OUT OF ADJUST. FORFWARD SERVICE DOOR GIRT BAR STOP RING ASSEMBLY MISSING <[01]. INSTALLED MISSING STOP RING PER AMM 25-66-01 ON FWD SVC DOOR SLIDE GIRT BAR.
- [SDR SWAA2025021496076](https://openairdocs.org/sdr/SWAA2025021496076), Feb 14, 2025: LENS. BROKEN. INDICATOR LENS EXIT SIGN R/H SERVICE DOOR FWD SIGN LENS BROKEN<[01] REMOVED AND REPLACED INDICATOR LENS FOR R/H SERVICE DOOR FWD EXIT SIGN ASSY REF. AMM 33-51-0
- [SDR SWAA2024111258235](https://openairdocs.org/sdr/SWAA2024111258235), Nov 9, 2024: MEGAPHONE. NONE. FWD MEGAPHONE INOP<[01] FWD MEGAPHONE OPS CHECK GOOD IAW AMM 25-64-00
- [SDR SWAA2024062404809](https://openairdocs.org/sdr/SWAA2024062404809), Jun 22, 2024: INDICATOR. FAULTY. ON APPROACH FLAPS WOULD NOT EXTEND. FLAPS INDICATOR SHOW ASYMMETRY<[01] PERFORMED FSEU BITE CHECK IAW FIM 27-51 TASK 801. FOUND FAULTS 27-53252 AND 27-53251. C/
- [SDR SWAA2024061902114](https://openairdocs.org/sdr/SWAA2024061902114), Jun 16, 2024: BATTERY PACK. INOPERATIVE. DURING EMERGENCY LIGHTS TEST; FOUND INOP ALL EMERGENCY LIGHTS COMMON TO BATTERY PACK M1670.<[01] REMOVED AND REPLACED EMERGENCY BATTERY PACK (M1670) AND TESTED 
- [SDR SWAA2024061998016](https://openairdocs.org/sdr/SWAA2024061998016), Jun 3, 2024: FLOOR PANEL. DAMAGED. PASSENGER CABIN FLOOR PANEL 231DF HAS 5 BAD INSERTS<[01] REPLACED FLOOR PANEL BY FABRICATION WITH BMS4-17 TYVI LOT 1557541-1 AND BMS5-107 CLASS 1 TYPE 1 ADHESIV
- [SDR SWAA2024061997349](https://openairdocs.org/sdr/SWAA2024061997349), Jun 1, 2024: SCUFF PLATE. CRACKED. FSD SCUFF PLATE HAS CRACK AT FWD CORNER. (MARKED)<[01] REPAIRED FSD PLATE AT FWD CORNER PER SRM 53-10-15-2R-2 STEP 4.B AND THE INSTALLATION OF THE FSD SCUFF PLA
- [SDR SWAA2024062189364](https://openairdocs.org/sdr/SWAA2024062189364), May 23, 2024: ATTACH ANGLE. CRACKED. PULLEY BRACKET ATTACH ANGLE IS CRACKED BS 693 LBL 1 WL 204.<[01] REMOVED; FABRICATED AND REPLACED PULLEY BRACKET ATTACH ANGLE AT BS 693 LBL 1 WL 204 IAW SRM 51-
- [SDR SWAA2024061989146](https://openairdocs.org/sdr/SWAA2024061989146), May 23, 2024: FLOORBEAM. CRACKED. CRACKED BREAK PANEL BS 540 BL0-RBL 25 WL 208.<[01] REMOVED FLOOR PANEL 231UF PER AMM 53-21-00-000-801. REMOVED CRACKED BREAK PANEL AND INSTALLED NEW BREAK PANEL
- [SDR SWAA2024061988853](https://openairdocs.org/sdr/SWAA2024061988853), May 22, 2024: FLOOR SUPPORT. CRACKED. CRACKED INTERCOSTAL BS 380-400 RBL 8 WL 208.<[01] REMOVED CRACKED INTERCOSTAL AT BS 380-400 RBL 8 WL 208. REPLACED WITH NEW INTERCOSTAL AT BS 380-400 RBL 8 WL 2
- [SDR SWAA2024061988852](https://openairdocs.org/sdr/SWAA2024061988852), May 22, 2024: FLOOR SUPPORT. CRACKED. CRACKED FLOOR SUPPORT BS 380-400 LBL 1 WL 208.<[01] REMOVED CRACKED INTERCOSTAL AT BS 380-400 LBL1 WL 208. REPLACED WITH NEW INTERCOSTAL AT BS 380-400 LBL 1 WL 
- [SDR SWAA2024061986948](https://openairdocs.org/sdr/SWAA2024061986948), May 17, 2024: SUPPORT PLATE. CORRODED. CORROSION FWD CARGO BAY L/H FLOOR TO SIDEWALL SUPPORT PLATE MULTIPLE AREAS AROUND NUT PLATE HOLES BS500+6' TO BS500C+8' LBL22 WL156<[01] REMOVED DAMAGED SECTION
- [SDR SWAA2024061986945](https://openairdocs.org/sdr/SWAA2024061986945), May 17, 2024: SIDEWALL SUPPORT. CORRODED. CORROSION AFT CARGO BAY R/H FLOOR TO SIDEWALL SUPPORT PLATE HAS MULTIPLE AREAS AROUND NUT PLATE HOLES BS727B TO BS767 RBL22 WL156<[01] CORROSION ON AFT CARGO BA
- [SDR SWAA2024061986946](https://openairdocs.org/sdr/SWAA2024061986946), May 17, 2024: SIDEWALL SUPPORT. CORRODED. CORROSION AFT CARGO BAY L/H FLOOR TO SIDEWALL SUPPORT PLATE MULTIPLE AREAS AROUND NUT PLATE HOLES BS727B TO BS767 LBL22 WL156<[01] CORROSION ON AFT CARGO BAY L/
- [SDR SWAA2024061986949](https://openairdocs.org/sdr/SWAA2024061986949), May 17, 2024: SHIELD. CORRODED. CORROSION AFT CARGO BAY SHIELD FWD OF CARGO DOOR AROUND MULTIPLE NUT PLATE HOLES BS767+3 TO BS794 RBL22 WL156<[01] CORROSION ON SHIELD WAS FOUND TO BE OUT OF LI
- [SDR SWAA2024061986950](https://openairdocs.org/sdr/SWAA2024061986950), May 17, 2024: INTERCOSTAL. CORRODED. CORROSION AFT CARGO BAY INTERCOSTAL BS767+10 S-27R WL150<[01] CORROSION ON AFT CARGO BAY INTERCOSTAL BS 767+10? S-27R WL150 FOUND TO BE OUT OF LIMITS. REMOVED; 
- [SDR SWAA2024061986767](https://openairdocs.org/sdr/SWAA2024061986767), May 16, 2024: LIGHT. DAMAGED. CABIN SIDEWALL PANEL 232YHW EXIT LIGHT DAMAGED.<[01] COMPLETED STEP 1;[02] COMPLETE STEP 2.;[03] REMOVED AND REPLACED CABIN SIDEWALL PANEL 232YHW EXIT LIGHT PER
- [SDR SWAA2024062185733](https://openairdocs.org/sdr/SWAA2024062185733), May 15, 2024: SPAR. CORRODED. RIGHT H-STAB REAR SPAR LOWER ATTACHMENT PIN PLAITING IS PITTED.<[01] RECEIVED NEW RH STAB REAR SPAR LOWER ATTACHMENT PIN; WILL BE INSTALLED ON TTG8Q003BFMD STEP
- [SDR SWAA2024061885990](https://openairdocs.org/sdr/SWAA2024061885990), May 15, 2024: SKIN. CRACKED. CRACK AROUND THE FASTENER AT NO.7 SLAT LOWER SURFACE OF THE L/E SLAT NOSE SKIN AT ACTUATOR RIBS. MARKED<[01] REMOVED DAMAGE AND REPAIRED NO.7 SLAT LOWER SURFACE

All 314: https://openairdocs.org/aircraft/N477WN/reports.md

## STCs that may be installed (OpenAirDocs) (37)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Boeing 737-7H4)

- [STC ST00555AT](https://openairdocs.org/stc/ST00555AT): Installation of Airshow 210 system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737 Series
- [STC SA4842SW](https://openairdocs.org/stc/SA4842SW): Modification of air to air heat exchanger (P/N 182820-2 Series 2). Honeywell International Inc. Lists 737 Series
- [STC SA270NW](https://openairdocs.org/stc/SA270NW): Installation of modified seat. Aviation Technical Services. Lists 737 Series
- [STC ST01162NY](https://openairdocs.org/stc/ST01162NY): Installation of Literature Pockets. Magee Plastics Company. Lists 737 Series
- [STC SA2607SO](https://openairdocs.org/stc/SA2607SO): Installation of coffee maker P/N 416-1001-29. B/E Aerospace Inc. Lists 737 Series
- [STC SA2608SO](https://openairdocs.org/stc/SA2608SO): Installation of rail assembly, P/N 416-0201-15. B/E Aerospace Inc. Lists 737 Series
- [STC SA3058SO](https://openairdocs.org/stc/SA3058SO): Installation of coffee maker 416-0001-23 and rail assembly 416-0201-5. B/E Aerospace Inc. Lists 737 Series
- [STC ST01476AT](https://openairdocs.org/stc/ST01476AT): Installation of coffee maker. B/E Aerospace Inc. Lists 737 Series
- [STC ST01778AT](https://openairdocs.org/stc/ST01778AT): Installation of espresso maker p/n 3510-0066-01. B/E Aerospace Inc. Lists 737 Series
- [STC SA629GL](https://openairdocs.org/stc/SA629GL): Installation of Grimes galley, Model 1545LW unit 2 and unit 4. B/E Aerospace. Lists 737 Series
- [STC ST01332AT](https://openairdocs.org/stc/ST01332AT): Installation of Galley Service Carts. Champ International, Inc. Lists 737 Series
- [STC ST09870SC](https://openairdocs.org/stc/ST09870SC): Installation of Mechanical Window Shades. Lou Martin & Associates. Lists 737 Series
- [STC ST00033AT](https://openairdocs.org/stc/ST00033AT): Installation of a single Mode S system and provisions for a TCAS II system. General Aerospace, Inc. Lists 737 Series
- [STC SA4532NM](https://openairdocs.org/stc/SA4532NM): Installation of Coltech, CTD-80 ATSCALL, enabling company calling of selected aircraft via company selected radio. Avtech Corporation. Lists 737 Series
- [STC ST4532NM](https://openairdocs.org/stc/ST4532NM): Installation of Coltech CTD-80 ATSCALL, enabling company calling of selected aircraft via company selected radio. Avtech Corporation. Lists 737 Series
- [STC ST00774NY](https://openairdocs.org/stc/ST00774NY): Installation of a passenger cabin Liquor/beverage service cart P/N E500170. (757-222) (767-222) (727-222) (737 SERIES 222, 291, 322, 522) (747-100 SERIES 238B). Driessen Aircraft Interior Systems USA, Inc. Lists 737 Series
- [STC ST02052AT](https://openairdocs.org/stc/ST02052AT): Installation of a single Collins GNLU910A flight management system, along with global navigation satellite system sensor. General Aerospace, Inc. Lists 737 Series
- [STC SA02034AT](https://openairdocs.org/stc/SA02034AT): Manufacture of tray carrier, P/N 2282-506. BFE Services. Lists 737 Series
- [STC ST01968AT](https://openairdocs.org/stc/ST01968AT): Manufacture of inserts for galley stowage. JK Aerospace, Inc. Lists 737 Series
- [STC SA01916AT](https://openairdocs.org/stc/SA01916AT): Manufacture of Tray Carrier P/N 1839-501. BFE Services. Lists 737 Series
- [STC SA2534SO](https://openairdocs.org/stc/SA2534SO): Installation of window shades, acoustic panes and reveals. Magee Plastics Company. Lists 737 Series
- [STC ST179CH](https://openairdocs.org/stc/ST179CH): Installation of cargo container curtain. Plastic Composites Corp. Lists 737 Series
- [STC SA00056LA](https://openairdocs.org/stc/SA00056LA): Installation of Weber Coffeemaker, P/N 870130-415. Monogram Systems. Lists 737 Series
- [STC SA6090NM](https://openairdocs.org/stc/SA6090NM): Installation of emergency vision assurance system (EVAS). VisionSafe Corporation. Lists 737 Series
- [STC SA370NW](https://openairdocs.org/stc/SA370NW): Removal of passenger interior, installation of cargo compartment liners and cargo tie down equipment. Western Metal Products. Lists 737 Series
- [STC SA2589CE](https://openairdocs.org/stc/SA2589CE): Install Bennetts Seat Converter Stowage Compartment on passenger seat(s). John's Aircraft and Upholstery. Lists 737 Series
- [STC SA1029NW](https://openairdocs.org/stc/SA1029NW): Installation of a cargo system. Western Metal Products. Lists 737 Series
- [STC SA1258EA](https://openairdocs.org/stc/SA1258EA): Installation of Cosco model78-( ) child restraint system. (172M S/N 17263459 - 17267584). Miller Stuart R. Lists 737 Series
- [STC SA1052SO](https://openairdocs.org/stc/SA1052SO): Installation of GE battery P/N43B022RB36 in place of Marathon P/N CA-727-7, CA-727-20, or CA-27-20 batteries or SAFT P/N23180 batteries; or installation of GE battery P/N 43B020RB10 replacing Marathon P/N CA-727-7, CA-727-20 or CA-27-20 or SAFT P/N 23186 or 23180 batteries. General Electric Company. Lists 737 Series
- [STC SA1082NW](https://openairdocs.org/stc/SA1082NW) (historical): Installation of auxiliary fuel tanks in the aft cargo compartment. (737 series -2K9A). Rogerson ATS. Lists 737 Series

### Approved for the engine (CFM International CFM56 series)

- [STC SE04840NY](https://openairdocs.org/stc/SE04840NY): Installation of HarcoSemco Exhaust Gas Temperature (EGT) Electrical Harnesses in CFM56-7 engine. Kilroy Aviation LLC. Lists CFM56-7B20
- [STC SE03036CH](https://openairdocs.org/stc/SE03036CH): Application of a deep compressive stress layer using a Low Plasticity Burnishing (LPB) process on CFM56-7 Series Engines Stage 1 High Pressure Compressor (HPC) Blade Dovetails in accordance with Delta Air Lines Inc. Drawing No. 72-0396, Revision B, dated November 3, 2011, or later FAA Approved revision. Delta Air Lines Inc. Lists CFM56-7B20
- [STC SE00032EN](https://openairdocs.org/stc/SE00032EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 Fan/Booster Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00033EN](https://openairdocs.org/stc/SE00033EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 High Pressure Compressor Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00034EN](https://openairdocs.org/stc/SE00034EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 High Pressure Turbine Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00035EN](https://openairdocs.org/stc/SE00035EN): Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 Low Pressure Turbine Module. Pratt & Whitney. Lists CFM56-3
- [STC SE00822CH](https://openairdocs.org/stc/SE00822CH): Install AeroControlex P/N 2604880-001 variable stator feedback control cable and P/N 2604880-002 variable bleed valve feedback control cable on CFM International engines. AeroControlex Group TransDigm Inc. Lists CFM56-2

## Related

- Other Boeing 737-7H4 aircraft: https://openairdocs.org/model/boeing-737-7h4/aircraft.md
- The CFM International CFM56 series engine: https://openairdocs.org/engine/cfm-international-cfm56-series.md

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